Carpal tunnel syndrome diagnostic study of choice: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 1: | Line 1: | ||
== Overview == | == Overview == | ||
CTSs Symptoms include numbness, pain, or paresthesia in the median nerve distribution. | |||
Commonly used provocative tests include wrist flexion (Phalen), nerve percussion (Tinel), and carpal compression (Durkan) tests. | |||
Electrodiagnostic studies (EDS) and imaging evaluations are used in order to confirm diagnosis. | |||
== Diagnosis == | == Diagnosis == | ||
==== Diagnostic Value of History and Physical Examination Findings for Carpal Tunnel Syndrome ==== | |||
{| class="wikitable" | |||
! colspan="1" rowspan="1" |FINDING | |||
! colspan="1" rowspan="1" |SENSITIVITY (%) | |||
! colspan="1" rowspan="1" |SPECIFICITY (%) | |||
|- | |||
| colspan="1" rowspan="1" |Flick sign | |||
| colspan="1" rowspan="1" |93 | |||
| colspan="1" rowspan="1" |96 | |||
|- | |||
| colspan="1" rowspan="1" |Hypalgesia | |||
| colspan="1" rowspan="1" |39 | |||
| colspan="1" rowspan="1" |88 | |||
|- | |||
| colspan="1" rowspan="1" |Square wrist sign | |||
| colspan="1" rowspan="1" |53 | |||
| colspan="1" rowspan="1" |80 | |||
|- | |||
| colspan="1" rowspan="1" |Classic or probable pattern on hand symptom diagram | |||
| colspan="1" rowspan="1" |64 | |||
| colspan="1" rowspan="1" |73 | |||
|- | |||
| colspan="1" rowspan="1" |Abduction weakness | |||
| colspan="1" rowspan="1" |65 | |||
| colspan="1" rowspan="1" |65 | |||
|- | |||
| colspan="1" rowspan="1" |Thenar atrophy | |||
| colspan="1" rowspan="1" |16 | |||
| colspan="1" rowspan="1" |90 | |||
|- | |||
| colspan="1" rowspan="1" |Tinel sign | |||
| colspan="1" rowspan="1" |36 | |||
| colspan="1" rowspan="1" |75 | |||
|- | |||
| colspan="1" rowspan="1" |Phalen maneuver | |||
| colspan="1" rowspan="1" |57 | |||
| colspan="1" rowspan="1" |58 | |||
|- | |||
| colspan="1" rowspan="1" |Nighttime or morning symptoms | |||
| colspan="1" rowspan="1" |70 | |||
| colspan="1" rowspan="1" |43 | |||
|- | |||
|Electrodiagnostic | |||
|49–84 | |||
|95–99 | |||
|- | |||
|Ultrasonography | |||
|82 | |||
|92 | |||
|- | |||
|MRI | |||
|63-83 | |||
|78-80 | |||
|- | |||
|Computed tomograph | |||
|67 | |||
|87 | |||
|} | |||
== References == | == References == | ||
Revision as of 19:56, 18 May 2018
Overview
CTSs Symptoms include numbness, pain, or paresthesia in the median nerve distribution.
Commonly used provocative tests include wrist flexion (Phalen), nerve percussion (Tinel), and carpal compression (Durkan) tests.
Electrodiagnostic studies (EDS) and imaging evaluations are used in order to confirm diagnosis.
Diagnosis
Diagnostic Value of History and Physical Examination Findings for Carpal Tunnel Syndrome
| FINDING | SENSITIVITY (%) | SPECIFICITY (%) |
|---|---|---|
| Flick sign | 93 | 96 |
| Hypalgesia | 39 | 88 |
| Square wrist sign | 53 | 80 |
| Classic or probable pattern on hand symptom diagram | 64 | 73 |
| Abduction weakness | 65 | 65 |
| Thenar atrophy | 16 | 90 |
| Tinel sign | 36 | 75 |
| Phalen maneuver | 57 | 58 |
| Nighttime or morning symptoms | 70 | 43 |
| Electrodiagnostic | 49–84 | 95–99 |
| Ultrasonography | 82 | 92 |
| MRI | 63-83 | 78-80 |
| Computed tomograph | 67 | 87 |